Mounting device for lighting fixtures



Aug. 25, 1924.-

A. JANOVSKY MOUNTING DEVICE FOR LIGHTING FIXTURES Filgd Nov. 26 1923 Snucni'oz Patented Aug. 26, 1924.

' UNITED STATES ANDY JANOVSKY, OF BROOKLYN, NEW' YORK, ASSIGNOR TO SHAPIRO &. AEONSOLI. INC,

PATENT OFFICE.

OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

MOUNTING DEVICE FOR LIGHTING FIXTURES.

Application filed November 26, 1923.

T all whom it may concern:

Be it known that I, ANDY JANovsxY, a citizen of the United States, residing in Brooklyn, county of Kings, and State of New York, have invented a certain new and useful Improvement in lvlounting Devices for Lighting Fixtures, of which the following is a specification.

I My invention relates more particularly to that class of devices to be used in connection with mounting electric lighting fixtures on side walls, although obviously it can be used in other positions. It is well known that the size or wall brackets used for this purpose are practically all different in their depth, so that it is necessary for the workman to carry large number of various sized nipples or hickeys and nipples to meet the conditions presented by the bracket which he is mounting.

My invention has for its object to entirely avoid this necessity and to provide a de vice which will permit of an adjustment so that the one device will do for all brackets regardless of variation in their depth.

My means of accomplishing the foregoing object may be more readily understood by having reference to the accompanying drawings which are hereto annexed and are a part of this specification in which Fig. 1 is a side view of a portion oi: an outlet box equipped with my improved device for mounting a fiat plate bracket.

Fig. 2 is a similar view, showing the same device used for mounting a. deep bracket.

Fig. 3 is a side view of a device partially in section.

Fig. 4 is an end view of the inner member.

Fig. 5 is a top View of the same.

Fig. 6 is an end vie of the outer mem ber. I

Fig. 7 is a top View of the same.

Fig. 8 is an isometric perspective view of the device as shown in Fig. 9.

Similar reference numerals refer to similar parts throughout the entire description.

As shown in the drawings, a standard outlet box No. 1, provided with the usual center stud 2, which is provided with external threads 3 and its end is shown in the position it would occupy in the side wall (not shown).

My improved mounting device comprises two L-shaped members 4 and 5, which are Serial No. 676,940.

provided with openings 6 and 7. in the vertical portions respectively. These openings are provided *ith threads 8 and 9, the threads 8 fitting the threads 3 on the stud 2 in the outlet box 1. The horizontal portion of the L shaped member 4% provided with a guide slot 10, in which is mounted a pin 11, which is fixedly mounted adj accnt the end 12 of the outer L-shaped member. The pin 11 is slidablc in the slot 10 and is also rotatable therein to permit the outer L shaped member t be swung thereon. The outer L-shaped member 5 is provided with a plurality of teeth 13 which are adapted to engage a dent or lug let fixedly mounted on the inner L shaped member 4, adjacent the end 15 of its horizontal portion. lVhen the two L-shaped members are in the position shown in Fig. 1, it is impossible to move them sideways. They have to be pushed toward each other first just enough to dislodge the detent 14 from the space intermediate the teeth 13, when the outer L shaped member 5 can be swung upon the pin 11 until the teeth are disengaged from the detent 1.4 and the outer L shaped menr her 5 can then be drawn outwardly until it assumes the extreme position shown in Fig. 2, when by swinging the member upon the pin 11, the teeth 13 are brought into engagement with detent 14 and the device can be firmly locked together. In this way, it is perfectly apparent that one of my mounting devices will accommodate itself to a considerable variation of sizes in the depth of wall brackets. Although I have only shown three teeth in the mount ing devices, it is apparent it can be made any desired length to meet the conditions presented by the location where it is to be used. The threads 9 are adapted to receive a close nipple 16 which may be screwed into a button 17, which serves to hold the bracket back 18 firmly in position.

Hcving described my invention what I regard as new and desire to secure by Let ters Patent is:

1. A fixture support comprising an L shaped member having a slot forming a guide in its horizontal portion and a threaded opening in its vertical portion, a second L shaped member having a threaded opening in its vertical portion, serrations on one edge of the horizontal portion, a detent on the first named portion adapted to engage said serrations, a pin slidable in said guide, which secures the two horizontal portions of said members together.

2. A fixture support comprising an L shaped member having a slot which forms a guide in its horizontal portion, a threaded opening in its vertical portion, a second L Shaped member having a threaded opening in its Vertical portion, means slidable in said guide which secure the two members pivotally together, means formed integral with one of said members which engages means mounted in the other member to prevent the lateral movement of said two members with relation to each other, said means permitting said movement whenv the two n'iembers are moved toward each other longitudinally.

3. A. fixture support C()1]'l]')l.iSl1lg two L shaped members slidably and pivotally secured together but slidable longitudinally with relation to each other, means formed integral with one of said members which engages fixed means secured to the other member to hold said members in fixed relation to each other and means to adjust said relationship when said last nai'ned means is not in engagement with both members.

4. A lighting fixture support comprising an L shaped member having a slot which forms a guide in its horizontal portion and a threaded opening in its vertical portion, a second L shaped member having a threaded opening in its vertical portion, a pin fixedly mounted in said second member slidable in said guide, upon which said second member may be swung laterally, serrations on one edge of the horizontal portion of the second L shaped member, a detent on the first named portion adapted to engage said serrations and hold said men'lbers in ANDY JANOVS'KY. 

